Violence flared at Newcastle’s Central Station as Sunderland supporters travelled home from a pre-season friendly in Scotland.

Detectives received intelligence that members of Sunderland’s Seaburn Casuals firm had co-ordinated an organised clash with Newcastle’s hooligans, the Gremlins.

The two gangs were kept apart but trouble flared on the station platforms as riot police fought to prevent the pre-arranged brawl.

Four police dogs were attacked in shameful scenes of violence and three men needed emergency treatment for head injuries.

Now, more than four months after the ugly scenes, files of evidence have been submitted to the Crown Prosecution Service for 42 of the 44 people arrested.

Two men were told no further action is to be taken, while the remaining 42 have been bailed until the New Year.

Det Insp John Cowell, of Northumbria Police, said: “Files of evidence have been passed to the CPS for 42 people and we await a charge decision.”

The disorder kicked-off on August 8 after Sunderland’s game with Edinburgh club Hearts.

Among those travelling from the Scottish capital were 40 onboard a designated football train, which contained so-called “risk supporters,” linked to Sunderland’s hooligan element.

When they pulled into Central Station, where they were due to change trains for a local line service, there was a heavy police presence and members of the group clashed with the officers.

Police drew batons to restrain the rowdy crowd and footage posted online showed a pool of blood on the platform after one man suffered head injuries.

Detectives later revealed they had mounted the operation to thwart a planned scrap between Sunderland and Newcastle thugs.

CCTV from a nearby subway showed alleged members of the Gremlins firm gearing up to do battle with weapons including a baton.

Smoke thought to have come from a grenade later clouds the footage.

Detectives spent hours trawling through the material and released three CCTV stills in a bid to expose the alleged ringleaders.

Today Andrew Waters, the football liaison lawyer for CPS Northumbria, said: “Northumbria Police has provided the CPS with files on a large number of people arrested during violence between Newcastle and Sunderland supporters earlier this year.

“A decision by the CPS on whether charges should be brought will be made in the New Year.”

The Central Station scenes sparked controversy, with police accused of being heavy-handed.

A probe was launched by the Independent Police Complaints Commission but swiftly concluded no further action would be taken.

The Football Supporters Federation reacted angrily, insisting it had differing intelligence and there were calls for IPCC Commissioner for the North East Gary Garland to resign.

Four police dogs called Clio, Floyd, Earl and Diesel, were treated for injuries after they were kicked and stamped on while on the floor.

It is thought a 15-strong Magpies mob who waited in a nearby subway, were armed with retractable batons and smoke bombs as the train pulled into the station.